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National Security Agency (NSA) Archive

Documents by and relating to the National Security Agency (NSA).



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William F. Friedman NSA Collection
William F. Friedman NSA Collection
collection
7,617
ITEMS
556,128
VIEWS
collection

eye 556,128

The 7,000 William Friedman documents released by the NSA.
Venona Documents
Venona Documents
collection
2,690
ITEMS
185,834
VIEWS
collection

eye 185,834

The Venona project was a counter-intelligence program initiated by the United States Army Signal Intelligence Service (a forerunner of the National Security Agency) that lasted from 1943 to 1980. The program decrypted messages sent by Soviet Union intelligence agencies, including its foreign intelligence service and military intelligence services. The project produced some of the most important breakthroughs for western counter-intelligence, including the discovery of the Cambridge spy ring and...
Topics: Venona, Venona files, Venona documents, SIS, Signal Intelligence Service, US Army, NSA, National...
National Security Agency (NSA) Archive
by National Security Agency
texts

eye 7,164

favorite 6

comment 0

NSA UFO files
Topics: NSA, UFO, UFOs
Military Cryptanalytics, Part I, Monoalphabetic Substitution Systems; Friedman And Callimahos
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Military Cryptanalytics, Part Ii, Interim Edition (FIRST Section): Periodic Polyalphabetic Substitution Systems; William F. Friedman And Lambros D. Callimahos
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Military Cryptanalytics, Part Ii, Interim Edition (SECOND Section); Lambros D. Callimahos And William F. Friedman
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Military Cryptanalytics, Part Ii, Interim Edition (THIRD Section); Lambros D. Callimahos And William F. Friedman
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman NSA Collection
texts

eye 1,275

favorite 5

comment 0

Basic Cryptography; Dept Of Army Technical Manual Tm32-220
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Military Cryptanalysis, Part Iv - Transposition And Fractionating Systems; By William F. Friedman For The War Department's Chief Signal Officer
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman NSA Collection
texts

eye 515

favorite 1

comment 0

Military Cryptanalysis, Part Iii: Aperiodic Substitution Systems
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
by National Security Agency
texts

eye 3,086

favorite 21

comment 2

Voynich Manuscript: An Elegant Enigma
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Topics: Voynich Manuscript, Voynich, NSA, National Security Agency
William F. Friedman NSA Collection
by William F. Friedman
texts

eye 1,192

favorite 0

comment 0

Division Field Code No.4
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman NSA Collection
by William F. Friedman
texts

eye 1,191

favorite 5

comment 0

The Friedman Lectures On Cryptology
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Request To Waterman Fountain Pen Company For New Cap And Clip, 4 January 1944
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
by National Security Agency
texts

eye 406

favorite 0

comment 0

NSA monitoring of the Paris peace negotiations of 1972-73. These records were originally classified under the DELTA and GAMMA compartments, indicating that they were highly sensitive intercepts of diplomatic communications.
Topics: NSA, National Security Agency, Paris Peace Talks, Paris Peace Accords, Vietnam War, Henry...
Military Cryptanalysis, Parts I And Ii: Monoalphabetic Substitution Systems
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman NSA Collection
texts

eye 174

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National Security Agency, Military Cryptanalytics, Part I
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Russian Dictionary Reverse Alphabetic Sort; Nsa-725 Crypto-Linguistic Working Aid No.3
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Military Cryptanalysis Part I, Monoalphabetic Substitution Systems; 3rd Edition
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman NSA Collection
by William F. Friedman
texts

eye 200

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Cryptanalysis Training Aid
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
German Radio Intelligence (BY Albert Praun, Former Lt. Gen.); Dept. Of The Army Office Of The Chief Of Military History. Includes Nsa Memo And Comments On Report
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
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Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
William F. Friedman NSA Collection
texts

eye 180

favorite 0

comment 0

S.I. Course, Vol. Ii: Figures And Cipher Texts
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman NSA Collection
texts

eye 516

favorite 1

comment 0

Field Codes Used By The German Army During The World War
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
texts

eye 105

favorite 0

comment 0

Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
National Security Agency (NSA) Archive
texts

eye 3,377

favorite 2

comment 0

NSA finding aid. Covers records and publications (classified and open source) collected by the Center for Cryptologic History.
Topics: NSA, National Security Agency, Center for Cryptologic History
Venona Documents
by NSA
texts

eye 103

favorite 0

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20jan probationer
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
Statistical Methods In Cryptanalysis, Revised Edition. Register No. 193, Serial No. 1008; By Solomon Kullback
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman NSA Collection
texts

eye 450

favorite 1

comment 0

Study Of The Beale Papers, 15 August 1949
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Military Cryptanalysis, Part I -- Monoalphabetic Substitution Systems
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Military Cryptanalysis, Part Ii, Simpler Varieties Of Polyalphabetic Substitution Systems
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
texts

eye 467

favorite 0

comment 0

Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act, European...
Venona Documents
by NSA
texts

eye 95

favorite 0

comment 0

02jan boris eliacheff
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
Venona Documents
by NSA
texts

eye 142

favorite 0

comment 0

14nov reissue stumm
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act, History...
American Army Field Codes In The American Expeditionary Forces During The First World War
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Venona Documents
by NSA
texts

eye 67

favorite 0

comment 0

3may defector
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
Military Cryptanalysis Part Iv Transposition And Fractionating Systems By William F Friedman
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Venona Documents
texts

eye 75

favorite 0

comment 0

20jan info from terentij
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
Venona Documents
by NSA
texts

eye 174

favorite 0

comment 0

5jun stalin
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
William F. Friedman NSA Collection
by William F. Friedman
texts

eye 60

favorite 0

comment 0

Letter From Friedman To Mensel
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman Office Records (1938-1942); Travel Orders, Travel Vouchers, Notifications Of Personnel Action, Letters, Memorandums
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman NSA Collection
texts

eye 62

favorite 0

comment 0

Patent Application For Cryptographs - Friedman
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman NSA Collection
by William F. Friedman
texts

eye 99

favorite 0

comment 0

Newspaper Articles
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Venona Documents
by NSA
texts

eye 64

favorite 0

comment 0

3may press report
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
National Security Agency (NSA) Archive
texts

eye 1,545

favorite 3

comment 0

Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
Venona Documents
texts

eye 1,160

favorite 3

comment 0

The Venona Story
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
William F. Friedman NSA Collection
texts

eye 645

favorite 0

comment 0

German Military Ciphers From February To November 1918
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Venona Documents
by NSA
texts

eye 68

favorite 0

comment 0

18may isaac folkoff
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
Venona Documents
by NSA
texts

eye 70

favorite 0

comment 0

21nov new recruits
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
Venona Documents
by NSA
texts

eye 68

favorite 0

comment 0

7may gru visit
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
National Security Agency Problem Book, Course, Military Cryptanalytics, Part 1 (SHORT Title: Mc-I Problems); Monoalphabetic Substitution Systems
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Venona Documents
by NSA
texts

eye 77

favorite 0

comment 0

24oct eduards meet jan
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
Venona Documents
by NSA
texts

eye 70

favorite 0

comment 0

1mar correction
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
Telemetry Intelligence (TELINT) During the Cold War
Topics: NSA, TELINT, Telemetry, Cold War
Nsa Civilian Employees By Seniority And Alphabetically, Gs-12 Thru Gs-15
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Military Cryptanalysis, Part I, Monoalphabetic Substitution System; 4th Edition, Friedman , Revised And Enlarged By Callimahos
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Venona Documents
by NSA
texts

eye 61

favorite 0

comment 0

15jul sammuel krafsur
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
Venona Documents
by NSA
texts

eye 65

favorite 0

comment 0

10nov lend lease
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
Rescission Of Secrecy Order Regarding Hagelin Patent No. 188546, 4 April 1952
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
National Security Agency (NSA) Archive
by NSA
texts

eye 188

favorite 0

comment 0

Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act, cryptolog
William F. Friedman NSA Collection
by William F. Friedman
texts

eye 73

favorite 0

comment 0

Scamp 1952 - Review
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Brief Of Testimony Of Army Ground Force Representative On Communications Equipment Before War Department Equipment Board, 19 December 1945
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
William F. Friedman NSA Collection
texts

eye 2,017

favorite 3

comment 0

Lisbonian Selection Of Roots And Terminals
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...
National Security Agency (NSA) Archive
texts

eye 115

favorite 1

comment 0

NSA history
Topics: NSA, National Security Agency
National Security Agency (NSA) Archive
texts

eye 164

favorite 0

comment 0

NSA history
Topics: NSA, National Security Agency, Cryptologic Histories
William F. Friedman NSA Collection
by William F. Friedman
texts

eye 69

favorite 0

comment 0

Personnel Problems, 29 January 1945
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Some Projects Which Need To Be Undertaken To Improve Comint, 22 November 1954
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Venona Documents
by NSA
texts

eye 75

favorite 0

comment 0

14apr rembrandt
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
National Security Agency (NSA) Archive
texts

eye 174

favorite 0

comment 0

746 page NSA Stellarwind IG Report via the NYTimes.
Topics: NSA, IG, National Security Agency, Inspector General, Stellarwind, NSA IG, New York Times, NY Times
Source: torrent:urn:sha1:bf7b848115729a3e0fb76a81f58701a99647be78
W.F. Friedman Letter To Dept Of State: Cryptographic Security Of Codatype Cypher Machine; S-028,605
Topics: NSA, Cryptography, National Security Agency, Friedman, William F. Friedman
Venona Documents
texts

eye 67

favorite 0

comment 0

5oct missing data apostolov
Topics: NSA, National Security Agency, Venona, Venona files, SIGINT, COMINT, Cold War
National Security Agency (NSA) Archive
by NSA
texts

eye 65

favorite 0

comment 0

Ask Zelda 51
Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act
National Security Agency (NSA) Archive
texts

eye 103

favorite 0

comment 0

Topics: NSA, National Security Agency, FOIA, Freedom of Information, Freedom of Information Act,...